Examples with ErrorBean org.alfresco.web.bean.ErrorBean used on opensource projects

Example 6 with ErrorBean

use of org.alfresco.web.bean.ErrorBean in project acs-community-packaging by Alfresco.

the class SystemErrorTag method doStartTag.

/**
 * @see javax.servlet.jsp.tagext.TagSupport#doStartTag()
 */
public int doStartTag() throws JspException {
    // get the error details from the bean, this may be in a portlet
    // session or a normal servlet session.
    ErrorBean errorBean = null;
    if (Application.inPortalServer()) {
        errorBean = AlfrescoFacesPortlet.getErrorBean(pageContext.getRequest());
    } else {
        errorBean = (ErrorBean) pageContext.getSession().getAttribute(ErrorBean.ERROR_BEAN_NAME);
    }
    if (errorBean == null) {
        // if we reach here the error was caught by the declaration in web.xml so
        // pull all the information from the request and create the error bean
        Throwable error = (Throwable) pageContext.getRequest().getAttribute("javax.servlet.error.exception");
        String uri = (String) pageContext.getRequest().getAttribute("javax.servlet.error.request_uri");
        // create and store the ErrorBean
        errorBean = new ErrorBean();
        pageContext.getSession().setAttribute(ErrorBean.ERROR_BEAN_NAME, errorBean);
        errorBean.setLastError(error);
        errorBean.setReturnPage(uri);
    }
    Throwable lastError = errorBean.getLastError();
    try {
        Writer out = pageContext.getOut();
        ResourceBundle bundle = Application.getBundle(pageContext.getSession());
        String errorMessage;
        String errorDetails;
        if (lastError == null) {
            String messageKey = errorBean.getErrorMessageKey();
            errorMessage = bundle.getString(messageKey == null ? MSG_ERROR_NOT_STORED : messageKey);
            errorDetails = bundle.getString(MSG_ERROR_NO_STACK_TRACE);
        } else {
            errorMessage = getLastErrorMessage(lastError, bundle);
            errorDetails = getStackTrace(lastError);
        }
        out.write("<div");
        if (this.styleClass != null) {
            out.write(" class='");
            out.write(this.styleClass);
            out.write("'");
        }
        out.write(">");
        out.write(errorMessage);
        out.write("</div>");
        // work out initial state
        boolean hidden = !this.showDetails;
        String display = "inline";
        String toggleTitle = "Hide";
        if (hidden) {
            display = "none";
            toggleTitle = "Show";
        }
        // output the script to handle toggling of details
        out.write("<script language='JavaScript'>\n");
        out.write("var hidden = ");
        out.write(Boolean.toString(hidden));
        out.write(";\n");
        out.write("function toggleDetails() {\n");
        out.write("if (hidden) {\n");
        out.write("document.getElementById('detailsTitle').innerHTML = '");
        out.write(bundle.getString(MSG_HIDE_DETAILS));
        out.write("<br/><br/>';\n");
        out.write("document.getElementById('details').style.display = 'inline';\n");
        out.write("hidden = false;\n");
        out.write("} else {\n");
        out.write("document.getElementById('detailsTitle').innerHTML = '");
        out.write(bundle.getString(MSG_SHOW_DETAILS));
        out.write("';\n");
        out.write("document.getElementById('details').style.display = 'none';\n");
        out.write("hidden = true;\n");
        out.write("} } </script>\n");
        // output the initial toggle state
        out.write("<br/>");
        out.write("<a id='detailsTitle' href='javascript:toggleDetails();'>");
        out.write(toggleTitle);
        out.write(" Details</a>");
        out.write("<div style='padding-top:5px;display:");
        out.write(display);
        out.write("' id='details'");
        if (this.detailsStyleClass != null) {
            out.write(" class='");
            out.write(this.detailsStyleClass);
            out.write("'");
        }
        out.write(">");
        out.write(errorDetails);
        out.write("</div>");
        // output a link to return to the application
        out.write("\n<div style='padding-top:16px;'><a href='");
        if (Application.inPortalServer()) {
            // NOTE: we don't have to specify the page for the portlet, just the VIEW_ID parameter
            // being present will cause the current JSF view to be re-displayed
            String url = AlfrescoFacesPortlet.getRenderURL(pageContext.getRequest(), Collections.singletonMap("org.apache.myfaces.portlet.MyFacesGenericPortlet.VIEW_ID", new String[] { "current-view" }));
            out.write(url.toString());
        } else {
            String returnPage = null;
            if (errorBean != null) {
                returnPage = errorBean.getReturnPage();
            }
            if (returnPage == null) {
                out.write("javascript:history.back();");
            } else {
                out.write(returnPage);
            }
        }
        out.write("'>");
        out.write(bundle.getString(MSG_RETURN_TO_APP));
        out.write("</a></div>");
        // this can be used by the user if the app has got into a total mess
        if (Application.inPortalServer() == false) {
            out.write("\n<div style='padding-top:16px;'><a href='");
            out.write(((HttpServletRequest) pageContext.getRequest()).getContextPath());
            out.write("'>");
            out.write(bundle.getString(MSG_RETURN_HOME));
            out.write("</a></div>");
            out.write("\n<div style='padding-top:16px;'><a href='");
            out.write(((HttpServletRequest) pageContext.getRequest()).getContextPath());
            out.write(ExternalAccessServlet.generateExternalURL("logout", null));
            out.write("'>");
            out.write(bundle.getString(MSG_LOGOUT));
            out.write("</a></div>");
        }
    } catch (IOException ioe) {
        throw new JspException(ioe);
    } finally {
        // clear out the error bean otherwise the next error could be hidden
        pageContext.getSession().removeAttribute(ErrorBean.ERROR_BEAN_NAME);
    }
    return SKIP_BODY;
}